#!/usr/bin/env bats
# Tests for scripts/kb-hygiene.sh — the monthly agent-KB hygiene report.

setup() {
  SCRIPT="$BATS_TEST_DIRNAME/../kb-hygiene.sh"
  KB="$BATS_TEST_TMPDIR/kb"
  OUT="$BATS_TEST_TMPDIR/inbox"
  mkdir -p "$KB/agents" "$OUT"

  # A hand-authored node that links to agent node AAA.
  cat > "$KB/20240101000000-craig-note.org" << 'EOF'
:PROPERTIES:
:ID:       craig-1111
:END:
#+title: Craig's note

See [[id:agent-aaa][the agent fact]].
EOF

  # Agent node AAA — linked from Craig's note (not an orphan).
  cat > "$KB/agents/20250101000000-linked-fact.org" << 'EOF'
:PROPERTIES:
:ID:       agent-aaa
:END:
#+title: Linked fact
#+filetags: :agent:reference:

A fact someone links to.
EOF

  # Agent node BBB — nothing links to it (orphan).
  cat > "$KB/agents/20250102000000-orphan-fact.org" << 'EOF'
:PROPERTIES:
:ID:       agent-bbb
:END:
#+title: Orphan fact
#+filetags: :agent:reference:

Nobody links here.
EOF
}

@test "missing KB path: exits nonzero with a message" {
  run "$SCRIPT" "$BATS_TEST_TMPDIR/nope" "$OUT"
  [ "$status" -ne 0 ]
  [[ "$output" == *"no KB"* ]]
}

@test "writes a dated report file into the report dir" {
  run "$SCRIPT" "$KB" "$OUT"
  [ "$status" -eq 0 ]
  ls "$OUT" | grep -q "kb-hygiene-report.org"
}

@test "counts agent nodes correctly" {
  run "$SCRIPT" "$KB" "$OUT"
  report=$(ls "$OUT"/*kb-hygiene-report.org)
  grep -q "Agent nodes: 2" "$report"
}

@test "flags the orphan and not the linked node" {
  run "$SCRIPT" "$KB" "$OUT"
  report=$(ls "$OUT"/*kb-hygiene-report.org)
  grep -q "orphan-fact" "$report"
  ! grep -A2 "Orphans" "$report" | grep -q "linked-fact"
}

@test "flags duplicate agent titles" {
  cat > "$KB/agents/20250103000000-dupe.org" << 'EOF'
:PROPERTIES:
:ID:       agent-ccc
:END:
#+title: Orphan fact
#+filetags: :agent:reference:
EOF
  run "$SCRIPT" "$KB" "$OUT"
  report=$(ls "$OUT"/*kb-hygiene-report.org)
  grep -qi "duplicate" "$report"
  grep -c "Orphan fact" "$report" | grep -qv '^0$'
}

@test "reports sync-conflict file count" {
  touch "$KB/junk.sync-conflict-20260101-000000-XXXX.org"
  run "$SCRIPT" "$KB" "$OUT"
  report=$(ls "$OUT"/*kb-hygiene-report.org)
  grep -q "Conflict files: 1" "$report"
}